Clinical use of interventional therapy for occlusive lesion in iliac arteries and femoral arteries of 42 cases

Objective: To evaluate the efficacy of interventional therapy of occlusive lesion in iliaco- femoral arteries. Methods: During Feb 2001 to Feb 2006, 42 patients (30 male and 12 female) with arterial occlusive lesions in iliac artery and/or femoral artery accepted interventional therapies. The interventional therapeutic process included local thrombolytic therapy through endoarterial catheter, artery recanalization by guide wire, percutaneous transluminal angioplasty (PTA) and stent. After interventional operation, patients were administrated anticoagulant and antibiotics one week. Follow-up interval ranged 2 years. Wilcoxon test and t test were used for statistics. Results: Immediate technical successful rate was 97.6% (41/42), the secondary technical success rate was 100.0% (42/42). The arterial occlusions were resolved successfully (local thrombolytic therapy in 26 cases, recanalization by guide wire in 31 cases, PTA in 33 eases and 60 stents in 31 cases). There were no severe complications (such as angiorrhexis, perforation) during interventional procedure. The symptoms of lower limb ischemia were palliated or vanished in all patients after interventional therapy. The ankle-brachnial index(ABI) of diseased extremities increased from pre-operation 0.34±0.14 to post-operation 0.65±0.10 (t=25.924, P<0.01). During the follow-up, 11/42 (26.2%) iliac or femoral artery (treated with local intra-arterial thrombolysis, PTA and stent) occurred restenosis. After PTA and stenting, the restenosis arteries became fluent successfully. The primary, patency rate was 92.8% (39/42)and the secondary, patency rate was 100.0% (42/42)1 year after the procedure. Two years after the procedure, the primary patency rate was 71.4% (30/42) and the secondary patency rate was 97.6% (41/42). Conclusions: Interventional therapy (including local thrombolysis, recanalization, PTA and stent) is an effective and safe therapy for occlusive lesion in iliaco- femoral arteries. (authors)